Home / 687,630,420.20-1,029,178,148.70-483,557,076.20

Finding the Fourth Proportional to 687,630,420.20, 1,029,178,148.70 and 483,557,076.20

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Solution

The fourth proportional to 687,630,420.20, 1,029,178,148.70 and 483,557,076.20 is: 723,741,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,630,420.20 : 1,029,178,148.70 = 483,557,076.20 : x
  2. Step 2: Convert to fraction form
    687,630,420.20/1,029,178,148.70 = 483,557,076.20/x
  3. Step 3: Cross multiply
    687,630,420.20x = 1,029,178,148.70 × 483,557,076.20
  4. Step 4: Simplify right side
    687,630,420.20x = 497,666,376,474,300,864
  5. Step 5: Solve for x
    x = 497,666,376,474,300,864/687,630,420.20
  6. Step 6: Final answer
    x = 723,741,070.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.